<div class="row collapse">
    @using (Html.BeginForm("Results", "Search", FormMethod.Post, new { id = "frmsearch" }))
    {
        <div class="ten mobile-three columns">
            <input type="text" id="SearchText" name="SearchText" class="nomargin" placeholder="Search..." />
        </div>
        <div class="two mobile-one columns">
            <a href="#" id="submit-search" class="postfix button expand">Go</a>
        </div>
    }
</div>

<script type="text/javascript">
    $(document).ready(function () {
        $("#submit-search").click(function (evt) {
            if ($("#SearchText").val().trim() != '')
                $("#frmsearch").submit();
            else
                alert("Please enter text to search");
            return false;
        });
    });
</script>